Well- if you have the brewing kit and have done some extracts, then what you are apparently contemplating is moving to all grain, and it sounds like malt will be hard to come by. What happened to Tusker or another brand of local beer? Perhaps a Kenyan brewery could provide a source of malt. You my have access to good barley and wheat, but malting your own grain is another whole thing, quite apart in some respects from brewing.....
“Malt does more than Milton can / To justify God’s ways to man”
-A. E. Housman (1859–1936). A Shropshire Lad , 1896.